Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A display device comprising: a self-luminous display element comprising: a first transistor; and a first electrode; a reflective display element; and a second transistor, wherein the first electrode is electrically connected to a source electrode or a drain electrode of the first transistor, wherein the reflective display element comprises a light-reflective layer and a layer comprising a liquid crystal material, wherein the layer comprising the liquid crystal material comprises a region located between the light-reflective layer and the self-luminous display element, wherein the self-luminous display element transmits visible light, wherein the reflective display element comprises a second electrode and a third electrode, wherein the second electrode and the third electrode can generate an electric field in the reflective display element, wherein the electric field can control alignment of the liquid crystal material of the layer comprising the liquid crystal material, wherein the second electrode is electrically connected to a source electrode or a drain electrode of the second transistor, wherein the second transistor comprises a first gate insulating film, wherein the first transistor comprises a second gate insulating film, wherein the second gate insulating film comprises a region overlapping with the first gate insulating film, wherein the layer comprising the liquid crystal material comprises a region located between the first gate insulating film and the second gate insulating film, and wherein the first electrode comprises a region located between the layer comprising the liquid crystal material and the second gate insulating film.
A display device combines a self-luminous display element and a reflective display element to enhance visibility under varying lighting conditions. The self-luminous display element includes a first transistor and a first electrode, while the reflective display element features a light-reflective layer and a liquid crystal layer positioned between the reflective layer and the self-luminous element. The self-luminous element emits visible light, which can pass through the liquid crystal layer. The reflective display element contains a second and third electrode that generate an electric field to control the alignment of the liquid crystal material, adjusting reflectivity. A second transistor, connected to the second electrode, drives the reflective display element. The transistors share overlapping gate insulating films, with the liquid crystal layer situated between them. The first electrode is positioned between the liquid crystal layer and the second gate insulating film. This dual-layer structure allows dynamic control of both emitted and reflected light, improving contrast and energy efficiency in different environments. The overlapping gate insulating films and strategic layer placement optimize space and performance.
2. The display device according to claim 1 , further comprising a polarizing plate, wherein the self-luminous display element comprises a region located between the layer comprising the liquid crystal material and the polarizing plate.
A display device includes a self-luminous display element and a layer containing liquid crystal material. The device further incorporates a polarizing plate, with the self-luminous display element positioned between the liquid crystal layer and the polarizing plate. The self-luminous display element emits light independently, while the liquid crystal layer modulates the emitted light to control brightness, contrast, or viewing angles. The polarizing plate filters the light to enhance display performance, such as reducing glare or improving color accuracy. This configuration allows the display to combine the benefits of self-emissive elements with the optical control of liquid crystal layers, enabling high-quality image rendering. The arrangement ensures efficient light management, improving energy efficiency and visual clarity. The device is particularly useful in applications requiring high dynamic range, such as televisions, smartphones, or digital signage.
3. The display device according to claim 1 , further comprising one coloring film or two or more coloring films, wherein the one coloring film or one of the two or more coloring films comprises at least a region located between the layer comprising the liquid crystal material and the self-luminous display element.
A display device incorporates a self-luminous display element, such as an organic light-emitting diode (OLED), and a liquid crystal layer to modulate light emitted by the display element. The device includes one or more coloring films positioned between the liquid crystal layer and the self-luminous display element. These coloring films may include color filters, polarizers, or other optical layers that modify the light passing through them. The coloring film(s) are strategically placed to enhance display performance, such as improving color accuracy, contrast, or viewing angles. The liquid crystal layer adjusts the transmittance or polarization of light from the self-luminous element, while the coloring film(s) further refine the output light before it reaches the viewer. This configuration allows for dynamic control of light properties, combining the benefits of liquid crystal modulation with the efficiency and brightness of self-luminous elements. The invention addresses challenges in display technology, such as achieving high color purity and energy efficiency while maintaining fast response times. The use of multiple coloring films can further optimize optical performance by stacking different functional layers.
4. The display device according to claim 1 , further comprising one coloring film or two or more coloring films, wherein the self-luminous display element comprises at least a region located between the one coloring film or one of the two or more coloring films and the layer comprising the liquid crystal material.
This invention relates to a display device incorporating self-luminous display elements, such as organic light-emitting diodes (OLEDs), and liquid crystal layers for enhanced image quality. The device addresses the challenge of improving color accuracy and brightness in displays by integrating coloring films with the self-luminous elements. The coloring films, which may include one or multiple layers, are positioned relative to the liquid crystal material to optimize light modulation. The self-luminous display elements include a region situated between the coloring film(s) and the liquid crystal layer, allowing precise control over light emission and transmission. This configuration enhances color purity and efficiency by filtering or modifying light before it passes through the liquid crystal layer. The device may also include additional components, such as a light-blocking layer, to further refine display performance. The invention aims to provide a high-quality display with improved color reproduction and brightness while maintaining energy efficiency.
5. The display device according to claim 1 , further comprising a support substrate, wherein the support substrate comprises at least a region located between the layer comprising the liquid crystal material and the self-luminous display element.
This invention relates to display devices incorporating both liquid crystal and self-luminous display elements, addressing challenges in integrating these technologies. The device includes a support substrate positioned between a layer containing liquid crystal material and a self-luminous display element, such as an organic light-emitting diode (OLED). The support substrate provides structural stability and facilitates the interaction between the liquid crystal layer and the self-luminous element. The liquid crystal layer modulates light transmission or polarization, while the self-luminous element generates light independently. The support substrate ensures proper alignment and spacing between these components, optimizing optical performance and device functionality. This configuration enables advanced display features, such as high contrast, wide viewing angles, and efficient light emission, by combining the benefits of liquid crystal modulation with the brightness and color control of self-luminous elements. The invention is particularly useful in high-performance displays requiring dynamic control over light output and transmission.
6. The display device according to claim 1 , wherein the first transistor, the second transistor, the layer comprising the liquid crystal material, and the self-luminous display element are each located between a polarizing plate and the light-reflective layer.
This invention relates to a display device incorporating both liquid crystal and self-luminous display elements, such as OLEDs, with improved optical efficiency and reduced power consumption. The device addresses the challenge of integrating reflective and emissive display technologies while minimizing optical losses and enhancing brightness. The display device includes a first transistor, a second transistor, a layer containing liquid crystal material, and a self-luminous display element, all positioned between a polarizing plate and a light-reflective layer. The first transistor controls the liquid crystal layer, which modulates light reflection, while the second transistor drives the self-luminous element, which emits light independently. The polarizing plate ensures proper light polarization for the liquid crystal layer, while the reflective layer enhances brightness by reflecting ambient light when the self-luminous element is inactive. This configuration allows the device to operate in both reflective and emissive modes, optimizing power usage based on ambient lighting conditions. The integration of these components between the polarizing plate and reflective layer minimizes optical losses, improving overall efficiency. The invention is particularly useful in low-power displays, such as those in wearable devices or e-readers, where both reflective and emissive functionalities are required.
7. The display device according to claim 1 , further comprising: a first substrate; and a second substrate, wherein the first transistor, the second transistor, the layer comprising the liquid crystal material, and the self-luminous display element are located between the first substrate and the second substrate.
This invention relates to a display device incorporating both liquid crystal and self-luminous display elements, such as organic light-emitting diodes (OLEDs), to enhance display performance. The device addresses the challenge of combining these technologies while maintaining structural integrity and functionality. The display includes a first transistor and a second transistor, a layer containing liquid crystal material, and a self-luminous display element, all integrated between a first substrate and a second substrate. The first transistor controls the liquid crystal layer, while the second transistor drives the self-luminous element. This dual-layer structure allows for high contrast, fast response times, and improved energy efficiency by selectively activating either the liquid crystal or self-luminous components based on display requirements. The substrates provide mechanical support and encapsulation, ensuring durability and protection for the internal components. This hybrid approach leverages the strengths of both display technologies, offering superior image quality and versatility in various applications, including high-resolution screens and flexible displays.
8. A semiconductor device comprising: one or more of a keyboard, a hardware button, a pointing device, a touch sensor, an illuminance sensor, an imaging device, an audio input device, a viewpoint input device, and a pose detection device; and the display device according to claim 1 .
A semiconductor device integrates multiple input and sensing components with a display device to enhance user interaction in electronic systems. The device includes one or more input mechanisms such as a keyboard, hardware buttons, or a pointing device, enabling traditional data entry and control. It also incorporates touch sensors for direct surface interaction, illuminance sensors to adjust display brightness based on ambient light, and imaging devices like cameras for visual input. Audio input devices capture voice commands, while viewpoint and pose detection devices track user positioning and gestures for advanced interaction. The display device, which is part of the semiconductor device, provides visual output and may include features like a flexible or foldable screen, a touch-sensitive surface, or a high-resolution panel. The combination of these components allows the semiconductor device to function as a versatile interface in applications such as smartphones, tablets, or wearable devices, improving usability and responsiveness. The integration of diverse input and sensing technologies into a single semiconductor device streamlines manufacturing and reduces system complexity while supporting advanced user interaction methods.
9. A display device comprising: a self-luminous display element comprising: a first transistor; and a first electrode; a reflective display element; and a second transistor, wherein the first electrode is electrically connected to a source electrode or a drain electrode of the first transistor, wherein the reflective display element comprises a light-reflective layer and a layer comprising a liquid crystal material, wherein the layer comprising the liquid crystal material comprises a region located between the light-reflective layer and the self-luminous display element, wherein the self-luminous display element transmits visible light, wherein the second transistor comprises a first gate insulating film, wherein the first transistor comprises a second gate insulating film, wherein the reflective display element comprises a second electrode and a third electrode, wherein the second electrode and the third electrode can generate an electric field in the reflective display element, wherein the electric field can control alignment of the liquid crystal material of the layer comprising the liquid crystal material, wherein the first electrode is one of electrodes of the self-luminous display element, wherein the second electrode is electrically connected to a source electrode or a drain electrode of the second transistor, wherein the layer comprising the liquid crystal material comprises a region located between the first gate insulating film and the first electrode, and wherein the first electrode comprises a region located between the layer comprising the liquid crystal material and the second gate insulating film.
This invention relates to a display device combining a self-luminous display element with a reflective display element to enhance visibility under varying lighting conditions. The device addresses the challenge of achieving high contrast and energy efficiency in displays by integrating both emissive and reflective technologies in a single structure. The display device includes a self-luminous display element, such as an OLED, which emits visible light, and a reflective display element that modulates ambient light using a liquid crystal layer. The reflective display element contains a light-reflective layer and a liquid crystal layer positioned between the reflective layer and the self-luminous element. The liquid crystal layer's alignment is controlled by an electric field generated between a second electrode and a third electrode, both of which are part of the reflective display element. The second electrode is connected to a second transistor, which includes a first gate insulating film. The self-luminous display element includes a first transistor with a second gate insulating film and a first electrode that transmits visible light. This first electrode is electrically connected to the first transistor and is positioned between the liquid crystal layer and the second gate insulating film. The combined structure allows the self-luminous element to emit light in dark environments while the reflective element enhances brightness in well-lit conditions, improving overall display performance. The transistors and electrodes are arranged to ensure proper electrical connections and optical functionality.
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May 19, 2020
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